Here's Xeodrifter, a new game from the Nintendo-friendly indie studio Renegade Kid, who are perhaps best known for the DS shooter Moon and the platformer Mutant Mudds.
This one looks pretty special. Like a modern, independent take on Super Metroid. Killer chiptunes, too. Xeodrifter will be out for 3DS at some point in the near future (Renegade Kid says this year).